It gives me great pleasure to interview Dr.Hyeon-Shik Hwang, an innovative orthodontist who has developed many creative techniques over his career.Dr.Hwang was born in Korea and received his DDS and PhD degrees from Yonsei University in Seoul.He is professor and chairman of the Department of Orthodontics at Chonnam National University School of Den
The effects of land use changes on poverty vary markedly among geographic regions.While Inner blueberry flash drive Mongolia has been experiencing significant land use changes during past decades, to date there has been no systematic research aimed at understanding how these land use changes affect poverty in the region.This study analyzes spatiote
With the development of science and technology, the accuracy requirements for solving engineering problems are getting stricter than before.Most structural design optimization problems in civil and mechanical engineering have proven to be the non-deterministic polynomial hard problems.The artificial bee colony (ABC) algorithm has been proven to be
ObjectiveThe effects of different ultrasonic impact treatment time on cross section microstructure, surface residual stress, surface microhardness, and corrosion resistance of 42CrMo4 steel sample was investigated.ResultsThe results showed that barely buff gelish after ultrasonic impact, a large amount of plastic deformation occurred on the surface